I’m an old school emacs guy, I prefer that for c++/python/etc and run KDE Neon because I like KDE and I’m used to ubuntu (and Kubuntu has some issues). For c++ I use CMake, google test. Not really a fan of docker etc. but I have used Kubernetes and docker in the past. Those types of containers just create new and more complicated problems than just testing on the target platform, but in some niche cases it can be useful.
I can’t stress enough how awesome emacs is, but it takes a serious investment to get efficient with it.